Bits for Large Diameter DCDMA Core Barrels

Size

Outside Set Diameter

Inside Set Diameter

Inch

mm

inch

mm

2-3/4 x 3-7/8 DCDMA

3.845 / 3.835

97.66 / 97.41

2.695 / 2.685

68.45 / 68.20

4 x 5-1/2 DCDMA

5.440 / 5.430

138.18 / 137.92

3.975 / 3.965

100.97 / 100.71

6 x 7-3/4 DCDMA

7.660 / 7.650

194.56 / 194.31

5.975 / 5.965

151.77 / 151.51